DLR HAP-alpha solar aircraft demonstrator passes key ground tests The CFRP uncrewed aircraft platform, designed as a sustainable alternative to satellites, completed ground vibration testing, leading ...

Fluid antennas embrace all forms of flexible-position antennas, both movable and non-movable. Hence the concept of fluid antenna system (FAS) introduces a new dimension to enhance multiple-input ...

This paper studies multi-antenna-aided covert communications coexisting with randomly located wardens and interferers, considering both centralized and distributed antenna systems (CAS/DAS). The ...